EP1311334B1 - Filtre a fluide ne fonctionnant qu'avec un element de filtre installe - Google Patents

Filtre a fluide ne fonctionnant qu'avec un element de filtre installe Download PDF

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Publication number
EP1311334B1
EP1311334B1 EP01952499A EP01952499A EP1311334B1 EP 1311334 B1 EP1311334 B1 EP 1311334B1 EP 01952499 A EP01952499 A EP 01952499A EP 01952499 A EP01952499 A EP 01952499A EP 1311334 B1 EP1311334 B1 EP 1311334B1
Authority
EP
European Patent Office
Prior art keywords
filter
central tube
tube member
filter assembly
reusable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01952499A
Other languages
German (de)
English (en)
Other versions
EP1311334A1 (fr
Inventor
Aaron K. Amstutz
David C. Becktel
Jeffrey R. Ries
Kevin K. Socha
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
Original Assignee
Caterpillar Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Inc filed Critical Caterpillar Inc
Publication of EP1311334A1 publication Critical patent/EP1311334A1/fr
Application granted granted Critical
Publication of EP1311334B1 publication Critical patent/EP1311334B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/0415—Details of supporting structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B01D2201/302—Details of removable closures, lids, caps, filter heads having inlet or outlet ports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4015—Bayonet connecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4046—Means for avoiding false mounting of different parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4076—Anti-rotational means

Definitions

  • the present invention relates generally to fluid filters, and more particularly to a reusable filter assembly with a locking mechanism to affix the replaceable filter element and the reusable filter housing.
  • Filter assemblies for filtering liquids such as engine oil, hydraulic oil and fuel are well known in the art.
  • a fuel filter assembly is installed in the engine fuel lines to remove grit and other contaminants from the fuel before it enters a fuel injection system of an engine to increase the service life of the fuel injection components.
  • Disposable or "throw away” type fluid filters are also known in the art.
  • the disposable fluid filter however, represents a waste of natural resources, labor and materials.
  • a reusable fluid filter assembly having a detachable cover, a filter element, and a housing, having a hollow central core to permit the replacement of the filter element, has been developed and is known in the art.
  • U.S. Pat. No. 5,846,416 issued 08 December 1998, to Caterpillar Inc. discloses such a reusable filter assembly.
  • a typical reusable filter assembly has a filter housing which contains a filter element used for filtering the fuel as it circulates through the housing.
  • the housing ordinarily has a first end adapted for coupling the filter assembly to the engine block of the internal combustion engine by means of an externally threaded housing that threads onto a corresponding internally threaded configuration on the engine block.
  • the housing also has a second end which is ordinarily closed.
  • the owner of the vehicle and/or the maintenance technician may dispose of the used filter element but unknowingly fail to replace the filter element. Since the threaded reusable housing attaches to the engine, it is possible to attach the housing to the engine without a replacement filter installed. Operation of the internal combustion engine without a filter element can jeopardize the integrity of the filtering system, resulting in very serious consequences.
  • the present invention is directed to overcome one or more problems of the heretofore utilized replaceable filter element and reusable filter housing assemblies.
  • a replaceable filter element 4 of a fluid filter assembly 2 with a locking mechanism is disclosed.
  • the filter element 4 has a central tube member 6 which attaches to a filter base 5 at the top portion 8, and at the bottom portion 10, a female locking member 11 rotatably couples and axially locks the filter element 4 to a reusable filter housing 14.
  • the filter element 4 also contains filter media 7.
  • a fluid filter assembly 2 in another aspect of the invention, includes a replaceable filter element 4 and a reusable filter housing 14.
  • the reusable filter housing 14 has an open end 16 and a closed end 18.
  • the closed end 18 has a male member formed within the closed end 18 and adapted for axially coupling and rotatably locking the filter housing 14 and the female locking member 11 of the replaceable filter element 4.
  • the fluid filter assembly 2 comprises a filter base 5, a reusable filter housing 14, and a replaceable filter element 4.
  • the filter base 5 is disposed generally above the replaceable filter element 4 which is attached to the filter base 5.
  • the filter element 4 is threaded to the filter base 5 by means of a threaded stud 3 mated with threads of central tube member 9 of a central tube member 6 of the replaceable filter element 4.
  • the fluid filter assembly 2 is especially adapted for use as a fuel filter assembly 2 in the fuel supply system of an internal combustion engine (not illustrated), such as a diesel engine, for removing particulate matter from the fuel and separating the water from the fuel. Filters of this type may also be used to filter impurities from oil in the lubrication system of an internal combustion engine or for other filter applications.
  • the filter base 5 and the replaceable filter element 4 may assume a wide variety of configurations.
  • the filter base 5 is an inverted cup-like receptacle.
  • the replaceable filter element 4 comprises a central tube member 6 with apertures 12 disposed along a longitudinal axis 1.
  • the apertured central tube member 6 has a top portion 8 and a bottom portion 10.
  • the top portion 8 of the apertured central tube member 6 has threads for mating with the threaded stud 3 of the filter base 5.
  • the central tube member 6 has internal threads for threadably engaging an externally threaded stud 3 of the filter base 5.
  • the bottom portion 10 of the apertured central tube member 6 provides a female locking member 11.
  • the female locking member 11 is an inverted cup-like receptacle with a recess 21 for receiving a male member 20.
  • the female locking member 11 is adapted for axially coupling and rotatably locking with the male member 20.
  • the central tube member 6 is cylindrical in shape and is constructed from a rigid polymer material.
  • a reusable filter housing 14 is cylindrical in shape and has an open end 16 and a closed end 18.
  • the filter housing 14 is constructed from a rigid polymer material.
  • the open end 16 has an annular sealing groove 15 adapted for sealing the reusable filter housing 14 with the filter base 5.
  • the closed end 18 of the filter housing 14 has a male member 20.
  • the male member 20 comprises a male stem 24 that is cylindrical in shape with flanges of the male locking mechanism 23 at 180 degrees to one another.
  • the male member 20 is adapted for axially coupling and rotatably locking the male member 20 of the filter housing 14 and the female locking member 11 of the filter element 4.
  • the male member 20 mates with the corresponding recess 21 in the filter element 4.
  • the male member 20 is inserted into the corresponding recess 21 of the female locking member 11 and is then rotated 90 degrees to lock the filter housing 14 and the filter element 4.
  • the filter element 4 is axially rotated.
  • the flanges of the male pedestal 23 are able to clear a short stopping mechanism 26 and continue rotation until about 90° where the flanges 23 contact a tall stopping mechanism 27 that lock the filter element 4 and the filter housing 14 in place.
  • Reusable filter assemblies have been developed to replace disposable filter assemblies in order to decrease waste and money.
  • the reusable type assemblies thread the housing into the filter base for installation.
  • a service technician may inadvertently remove the used filter element and fail to replace it prior to reinstalling the filter housing. This can cause debris to accumulate in the fuel system and eventually cause engine damage.
  • the filter element 4 includes a female locking member 11 which rotatably couples and axially locks with a male member 20, which is formed integrally with the filter housing 14.
  • the filter element 4 includes a top portion 8 of the central tube member 6, which attaches to the filter base 5 after the filter element 4 and the filter housing 14 are coupled.
  • the female locking member 11 mates with the flanges of the male pedestal 23 so that the tangs of the female locking member 22 slide over the male member 20 and provide resistance as the two mate.
  • the assembly is installed by attaching the central tube member 6 to the filter base 5.
  • the top portion 8 of the central tube member 6 has internal threads 9 which mate with and threadably engage external threads of the stud 13 on the filter base 5.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (10)

  1. Structure de filtre (2) pour fluide munie d'un mécanisme de verrouillage, comprenant :
    un élément de filtre remplaçable (4) comportant un milieu de filtrage (7) entourant un élément de tube central percé (6) disposé selon un axe longitudinal (1), l'élément de tube central percé (6) ayant une partie supérieure (8) et une partie inférieure (10), la partie supérieure (8) se fixant par un moyen de verrouillage à une tige (3) d'une base de filtre (5), la partie supérieure (10) comprenant un élément de verrouillage femelle (11) solidaire de la partie inférieure (10) ; et
    un boítier de filtre réutilisable (14) comportant un corps cylindrique avec une extrémité ouverte (16), l'extrémité ouverte (16) étant adaptée à se coupler de façon étanche à la base de filtre (5), et une extrémité fermée (18), l'extrémité fermée (18) comprenant un élément mâle (20) ayant une tige mâle cylindrique (24), la tige mâle cylindrique (24) ayant des rebords (23), l'élément mâle (20) étant adapté à se coupler axialement et à se verrouiller à rotation avec l'élément de verrouillage femelle (11) de l'élément de filtre remplaçable (4).
  2. Structure de filtre réutilisable (2) pour fluide selon la revendication 1, dans laquelle la partie supérieure (8) de l'élément de tube central (6) comprend un filetage (9) adapté à se visser avec la tige (3), la tige (3) comportant un filetage d'accouplement (13).
  3. Structure de filtre réutilisable (2) pour fluide selon la revendication 1, dans laquelle le filetage (9) de l'élément de tube central (6) est interne.
  4. Structure de filtre réutilisable (2) pour fluide selon la revendication 1, dans laquelle le filetage (9) de l'élément du tube central (6) est externe.
  5. Structure de filtre réutilisable (2) pour fluide selon la revendication 1, dans laquelle l'élément de tube central (6) comprend des ouvertures (12).
  6. Structure de filtre réutilisable (2) pour fluide selon la revendication 1, dans laquelle l'extrémité ouverte (16) du boítier de filtre (14) comprend une rainure de scellement annulaire (15) à la périphérie externe du boítier de filtre (14) adaptée à recevoir un joint (25), scellant ainsi le boítier de filtre (14) et la base de filtre (5).
  7. Elément de filtre réutilisable (4) pour fluide pour structure de filtre (2) pour fluide selon l'une quelconque des revendications 1 à 6, comprenant :
    un élément de tube central (6), l'élément de tube central (6) ayant des parties supérieure (8) et inférieure (10), la partie supérieure (8) pouvant être fixée à une tige (3) d'une base de filtre (5), la partie inférieure (10) comportant une partie de verrouillage femelle (11) formée d'une seule pièce avec la partie inférieure (12) pour un couplage axial et un verrouillage à rotation avec un élément mâle (20) du boítier de filtre (14) de la structure de filtre (2) pour fluide ; et
    un milieu de filtrage (7), le milieu de filtrage (7) se logeant périphériquement dans l'élément de tube central (6).
  8. Structure de filtre réutilisable (2) pour fluide selon la revendication 7, dans laquelle la partie supérieure (20) de l'élément du tube central (19) comprend un filetage (9) adapté à se visser avec la tige (3), la tige (3) comprenant un filetage correspondant (9).
  9. Structure de filtre réutilisable (2) pour fluide selon la revendication 7, dans laquelle l'élément de tube central (6) comprend des ouvertures (12).
  10. Structure de filtre réutilisable (2) pour fluide selon la revendication 7, dans laquelle l'extrémité ouverte (16) du boítier de filtre (14) comporte une rainure de scellement annulaire (15) sur la périphérie externe du boítier de filtre (14) pour sceller le boítier de filtre (14) et la base de filtre (5).
EP01952499A 2000-08-23 2001-07-06 Filtre a fluide ne fonctionnant qu'avec un element de filtre installe Expired - Lifetime EP1311334B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/644,379 US6481580B1 (en) 2000-08-23 2000-08-23 Fluid filter with locking mechanism
US644379 2000-08-23
PCT/US2001/021460 WO2002016004A1 (fr) 2000-08-23 2001-07-06 Filtre a fluide ne fonctionnant qu'avec un element de filtre installe

Publications (2)

Publication Number Publication Date
EP1311334A1 EP1311334A1 (fr) 2003-05-21
EP1311334B1 true EP1311334B1 (fr) 2004-09-15

Family

ID=24584654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01952499A Expired - Lifetime EP1311334B1 (fr) 2000-08-23 2001-07-06 Filtre a fluide ne fonctionnant qu'avec un element de filtre installe

Country Status (8)

Country Link
US (1) US6481580B1 (fr)
EP (1) EP1311334B1 (fr)
JP (1) JP5274746B2 (fr)
CN (1) CN1224442C (fr)
AT (1) ATE276033T1 (fr)
AU (1) AU2001273241A1 (fr)
DE (1) DE60105621T2 (fr)
WO (1) WO2002016004A1 (fr)

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JP5731547B2 (ja) * 2010-03-04 2015-06-10 ハイダック フィルターテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング 濾過装置
US20120292243A1 (en) * 2011-05-18 2012-11-22 Pall Corporation Filter arrangments and filter apparatuses which include filter arrangements
DE102011115050A1 (de) 2011-10-07 2013-04-11 Hydac Filtertechnik Gmbh Stützstruktur für ein Filterelement
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Also Published As

Publication number Publication date
DE60105621T2 (de) 2005-09-29
JP5274746B2 (ja) 2013-08-28
US6481580B1 (en) 2002-11-19
ATE276033T1 (de) 2004-10-15
WO2002016004A1 (fr) 2002-02-28
JP2004506503A (ja) 2004-03-04
CN1449300A (zh) 2003-10-15
AU2001273241A1 (en) 2002-03-04
DE60105621D1 (de) 2004-10-21
EP1311334A1 (fr) 2003-05-21
CN1224442C (zh) 2005-10-26

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